Linear actuator and braking system

Linear actuator 10 for a hydraulic braking system, comprising an electric motor with a stator 6 and a rotor 2, a motor housing 7, and a nut 1 and screw 3 which are rotatable with respect to each other. The nut 1 is fixed to the rotor 2 and the screw 3 is fixed to the piston (20; fig. 4) which is axi...

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Bibliographic Details
Main Authors Ovidiu Niculescu, Alexandru Mihalache, Mihai Scutaru, Valeriu Stefan
Format Patent
LanguageEnglish
Published 27.09.2023
Subjects
ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL
BLASTING
BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
ENGINEERING ELEMENTS AND UNITS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
PERFORMING OPERATIONS
PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES
THERMAL INSULATION IN GENERAL
TRANSPORTING
VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF
VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
VEHICLES IN GENERAL
WEAPONS
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Summary:Linear actuator 10 for a hydraulic braking system, comprising an electric motor with a stator 6 and a rotor 2, a motor housing 7, and a nut 1 and screw 3 which are rotatable with respect to each other. The nut 1 is fixed to the rotor 2 and the screw 3 is fixed to the piston (20; fig. 4) which is axially moveable into a hydraulic pressure chamber (21; fig. 4). The axial length of the nut 1 may be longer than the axial length of the screw, e.g. three times longer. The nut and screw may form a ball screw drive, with ball roller bearings. The screw/spindle may include a rod with longitudinal channels (see figure 2) to prevent rotational movement of the screw relative to the piston. There may be a joint 14 to prevent axial deviation of the screw. There may be a rubber plug 16 between the screw and the housing for zero point protection.
Bibliography:Application Number: GB20220004080